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Old December 21st 17, 04:18 PM posted to alt.comp.hardware.pc-homebuilt
Paul[_28_]
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Default The Pesky PWDIS Feature In Newer SATA Specs

B00ze wrote:
Jesus what a bunch of morons!

http://www.tomshardware.com/news/hdd...ure,36146.html

Now in a few years when you need to buy a new hard drive, you will have
to buy a new power-supply to go along with it.

Regards,


It's OK on desktops, because you could cobble together
some sort of adapter to place inline with *each* 15p Power
connector.

It's going to be a real bear on server backplanes, where you have
zero clearance to do anything, and the drive slides into a bay
with a 15p connector mounted and soldered to the server backplane.

Of course, this isn't the first time they've done this. There
is a pin defined on the 15p as a disk activity light (optional).

Someone at SATAIO needs a new hobby.

Just not in any standards-defining field.

I wonder if they have any engineers on staff ?

https://sata-io.org/

So the next question will be, does the signal have a pullup
or a pulldown on it ? If it has a pullup, then not only would
you need to cut the 3.3V wire running to the 15p, you'd
also have to ground the signal, as otherwise the pullup
on the drive end maintains a PWDIS state. It may have to be
actively pulled to ground, so when you cut the 3.3V wire,
you'd have to ground it as well. Which means slicing something
else to get access to a ground.

Paul